These Regulations amend the Clean Heat Market Mechanism (CHMM) Regulations 2025, which established the mandatory scheme requiring boiler manufacturers to meet escalating targets for installing low-carbon heat pumps proportionate to their fossil fuel boiler sales in the UK. The amendments officially designate the Microgeneration Certification Scheme (MCS) as the sole approval scheme for CHMM compliance, update the criteria for what qualifies as a hybrid heating system, and most significantly, increase the required low-carbon heat installation target for scheme years beginning April 1, 2026, from 6% to 8% of relevant boiler sales.

The Secretary of State made this Order under powers granted by the Electricity Act 1989 to amend the existing 2025 Order concerning the Dogger Bank A Offshore Wind Farm.

This amendment specifically extends the date until which the project is exempt from the requirement to hold an electricity transmission licence, changing the expiry date from December 19, 2025, to December 18, 2026, and the Order applies to England, Wales, and Scotland.

These Regulations, made by the Secretary of State under the powers in the Energy Act 2023, specify that provisions of that Act will commence on 2nd December 2025; specifically, Regulation 2 brings into force the remaining parts of Section 304, which amends the Nuclear Installations Act 1965 to establish a pathway for excluding specific installations used for disposing of nuclear matter from the existing nuclear third party liability regime.

These Regulations establish the necessary technical conditions for certain nuclear installations used for the disposal of nuclear matter to be exempt from the strict liability provisions of the Nuclear Third Party Liability (NTPL) regime established under the Nuclear Installations Act 1965.

The requirements include limiting the effective dose to the public off-site to no more than 1 millisievert and ensuring the risk of criticality on the site is negligible; furthermore, the legislation amends previous regulations to define nuclear matter disposed of on such an exempted site as 'excepted matter,' thereby clarifying liability responsibilities.

The Secretary of State has used powers under the Planning Act 2008 to implement a non-material change to the Net Zero Teesside Order 2024, formalised by this Order taking effect on October 29th, 2025.

This amendment updates definitions within the Order, specifically introducing and refining terms like 'book of reference,' 'Order land,' and introducing 'supplemental land.' Key changes involve adding 'Work No. 6A' (above-ground installations) to the authorised development, restricting the undertaker's powers to survey or compulsorily acquire interests in the new 'supplemental land,' and updating several schedules related to certified documents, protective provisions, and land plans.

The Mona Offshore Wind Farm (Correction) Order 2025 formally amends the original development consent order granted for the Mona Offshore Wind Farm under the Planning Act 2008.

This Order, made by the Secretary of State following a request from the applicant, addresses specific correctable errors and omissions within the original Order by substituting, inserting, or omitting text detailed in the accompanying Schedule.

It comes into force on October 24, 2025, ensuring that the existing planning permissions reflect the intended legal provisions regarding technical definitions, consent procedures, environmental considerations, and rights of way relating to the wind farm development.

This Order officially rectifies specific textual errors and omissions discovered in the original Byers Gill Solar Order 2025, which granted development consent under the Planning Act 2008.

The Secretary of State for Energy Security and Net Zero made these corrections, detailed in a schedule, following a formal written request from the project applicant, ensuring the primary consent order is accurately recorded regarding technical provisions, article references, and details concerning public rights of way.

This Order, titled The Portishead Branch Line (MetroWest Phase 1) (Correction) Order 2025, formally enacts corrections to errors and omissions found within The Portishead Branch Line (MetroWest Phase 1) Order 2022, which originally granted development consent under the Planning Act 2008.

The Secretary of State made these corrections, which range from minor typographical adjustments to definitional changes affecting bodies like Network Rail and National Grid, subsequent to a formal written request from the applicant.